Question | Answer |
What is the most important thing DNA does for us? | It provides the instructions for making proteins in an organism. |
How does our body use glucose? | The carbohydrates in glucose are broken down to release chemical energy that is used by our body cells. |
What does hydrophobic mean? | a substance is INSOLUBLE IN WATER. |
What is an example of a hydrophobic molecule? | Lipids |
What characteristic of an enzyme suggests that the shape of an enzyme determines its function? | Enzymes are specific to a substrate. |
What is the relationship between proteins and nucleic acids? | The nucleic acids actually contain the information needed to make proteins. |
What does our body need to synthesize proteins? | We need a diet rich in amino acids. |
How does enzymes affect the reactions in which they take part? | Enzymes decrease the activation energy of the reaction. |
If a substance causes an oily spot to appear on paper, what does the substance have in it? | LIPIDS |
What does a DNA molecule look like? | a twisted ladder |
How is the function of DNA different from a LIPID? | DNA contains genetic material. Lipids make up cell membranes. |
Which kind of molecule is used for long-term storage of energy? | Lipids |
Give an example of a monomer. | monosaccharide |
What kind of charge does an electron have? | negative |
What kind of ion forms when a neutral atom GAINS an additional electron? | NEGATIVE |
If you want to find which element is the heaviest, what do you look at? | Look at the mass number. |
What does a chemical reaction do? | It changes one set of chemicals into another set of chemicals. |
What organic molecules help to fight diseases? | proteins |
polysaccharides are which type of organic molecule? | carbohydrates |
What organic molecule is composed of nucleotides? | nucleic acids |
Name an important part of a cell membrane. | lipids |